Databases grow over time, sometimes outgrowing the space on the file system. You can also run into I/O contention when they’re located on the same partition as the rest of the operating system. RAID, network block storage, and other devices can offer redundancy and other…
In this guide, you will configure an active-active MariaDB Galera cluster. For demonstration purposes, you will configure and test three CentOS 7 Droplets that will act as nodes in the cluster. MariaDB is an open source relational database system that is fully compatible with the popular MySQL RDBMS system. Galera is a database clustering solution that enables you to set up multi-master clusters using synchronous replication.
This tutorial will teach you how to configure a Multi-Node cluster with Cassandra on a VPS. Cassandra, a highly scalable open source database system that achieves great performance when setup with multiple-nodes – even on different data centers.
Автор выбрал COVID-19 Relief Fund для получения пожертвования в рамках программы Write for DOnations. Веб-сервер Apache HTTP эволюционировал все…
In this tutorial, you will set up an internal DNS server using two Ubuntu 22.04 servers. You will use the BIND name server software (BIND9) to resolve private hostnames and private IP addresses. This provides a central way to manage your internal hostnames and private IP addresses, which is indispensable when your environment expands to more than a few hosts.
This tutorial outlines how to update an existing replica set to use keyfile authentication. The procedure involved in this guide will also ensure that the replica set doesn’t go through any downtime, so the data within the replica set will remain available for any clients or applications that need access to it.
Nginx is a high performance web server capable of serving content with flexibility and power. When designing your web pages, it is often helpful to customize every piece of content that your users will see. This includes error pages for when they request content that is not…
Redis is an open-source key-value data store, using an in-memory storage model with optional disk writes for persistence. It features transactions, a pub/sub messaging pattern, and automatic failover among other functionality. Redis has clients written in most languages with…
SSH (ou secure shell) est le moyen le plus couramment utilisé pour administrer des serveurs Linux distants. Bien que le démon permette une authentification par mot de passe, le fait d’exposer votre réseau à un compte protégé par mot de passe le rend vulnérable aux attaques par force brute. Au cours de ce guide, nous allons vous montrer comment configurer votre serveur avec des clés SSH, la méthode d’authentification recommandée. Les pirates auront bien plus de mal à contourner ces mesures, grâce
FTP was a popular file sharing mechanism for network connected computers in the past. However, its usage has fallen out of favor due to inherent security flaws. In this guide, we will discuss how to use SSL/TLS to improve the security of your FTP sessions if you must continue to use this protocol.
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